Method for resource allocation in device to device communication

Abstract

A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device is provided. The network node configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to receive a unicast request message from a wireless device where the unicast request message includes information associated with a request for a unicast connection, and determine whether to permit establishment of the requested unicast connection based at least in part on the information in the unicast request message.

The invention claimed is: 
     
       1. A network node for allocating a resource pool for use by a wireless device in device to device communications, the resource pool being one of a plurality of resource pools, each resource pool comprising one or more time and frequency resource, the network node comprising processing circuitry configured to:
 obtain one or more properties associated with one of a unicast, multicast and broadcast connection, the obtained one or more properties being received from the wireless device in a request for configuration of the one of the unicast, multicast and broadcast connection, the request message indicating a preferred casting type, a casting type being one of unicast, multicast and broadcast; 
 determine whether the requested configuration can be established; and 
 allocate a resource pool per wireless device for the requested configuration based on the one or more properties and for the preferred casting type. 
 
     
     
       2. The network node of  claim 1 , wherein the one or more properties are one or more of:
 a wireless device location; 
 a wireless device capability; 
 a maximum power level for the unicast connection; 
 a quality of service level; 
 a global unicast connection identifier; and 
 a physical cell identifier of a cell that is in communication with the wireless device. 
 
     
     
       3. The network node of  claim 1 , wherein the processing circuitry is further configured to indicate the allocated resource pool to the wireless device for one of autonomous resource allocation and network node scheduled resource allocation. 
     
     
       4. The network node of  claim 1 , wherein the request message indicates a plurality of casting types, each casting type having a respective priority; and
 the allocated resource pool being for one of the plurality of casting types. 
 
     
     
       5. The network node of  claim 4 , wherein the plurality of casting types includes at least two of unicast, multicast and broadcast. 
     
     
       6. A wireless device for using a resource pool for device to device communication, the resource pool being one of a plurality of resource pools, each resource pool corresponding to time and frequency resources, the wireless device comprising processing circuitry configured to:
 cause transmission of a request message that indicates one or more properties for configuration of one of a unicast, multicast and broadcast connection and indicates a preferred casting type, a casting type is one of unicast, multicast and broadcast; and 
 receive an indication of an allocated resource pool, the resource pool being allocated to establish a unicast, multicast or broadcast connection for the wireless device and the resource pool being allocated based on one or more properties associated with the one of the unicast, multicast and broadcast connection, and the allocated resource pool being for the preferred casting type. 
 
     
     
       7. The wireless device of  claim 6 , wherein the request message indicates a plurality of casting types, each casting type having a respective priority; and
 the allocated resource pool being for one of the plurality of casting types. 
 
     
     
       8. The wireless device of  claim 7 , wherein the plurality of casting types includes at least two of unicast, multicast and broadcast. 
     
     
       9. A method implemented by a network node for allocating a resource pool for use by a wireless device in device to device communications, the resource pool being one of a plurality of resource pools, each resource pool comprising one or more time and frequency resource, the method comprising:
 obtaining one or more properties associated with one of a unicast, multicast and broadcast connection, the obtained one or more properties being received from the wireless device in a request for configuration of the one of the unicast, multicast and broadcast connection, the request message indicating a preferred casting type, a casting type being one of unicast, multicast and broadcast; 
 determining whether the requested configuration can be established; and 
 allocating a resource pool per wireless device for the requested configuration based on the one or more properties and for the preferred casting type. 
 
     
     
       10. The method of  claim 9 , wherein the one or more properties are one or more of:
 a wireless device location; 
 a wireless device capability; 
 a maximum power level for the unicast connection; 
 a quality of service level; 
 a global unicast connection identifier; and 
 a physical cell identifier of a cell that is in communication with the wireless device. 
 
     
     
       11. The method of  claim 9 , wherein the resource pool corresponds to another resource pool allocated to another wireless device. 
     
     
       12. The method of  claim 9 , further comprising indicating the allocated resource pool to the wireless device for one of autonomous resource allocation and network node scheduled resource allocation. 
     
     
       13. The method of  claim 9 , wherein the request message indicates a plurality of casting types, each casting type having a respective priority; and
 the allocated resource pool being for one of the plurality of casting types. 
 
     
     
       14. The method of  claim 9 , wherein the plurality of casting types includes at least two of unicast, multicast and broadcast. 
     
     
       15. The method of  claim 9 , wherein the allocated resource pool is dedicated for use by the wireless device. 
     
     
       16. A method implemented by a wireless device for using a resource pool for device to device communication, the resource pool being one of a plurality of resource pools, each resource pool corresponding to time and frequency resources, the method comprising:
 transmitting a request message that indicates one or more properties for configuration of one of a unicast, multicast and broadcast connection and indicates a preferred casting type, a casting type being one of unicast, multicast and broadcast; and 
 receiving an indication of an allocated resource pool, the resource pool being allocated to establish a unicast, multicast or broadcast connection for the wireless device and the resource pool being allocated based on one or more properties associated with the one of the unicast, multicast and broadcast connection, and the allocated resource pool being for the preferred casting type. 
 
     
     
       17. The method of  claim 16 , wherein one or more properties are one or more of:
 a wireless device location; 
 a wireless device capability; 
 a maximum power level for the unicast connection; 
 a quality of service level; 
 a global unicast connection identifier; and 
 a physical cell identifier of a cell that is in communication with the wireless device. 
 
     
     
       18. The method of  claim 16 , wherein the indication of the allocated resource pool is for one of autonomous resource allocation and network node scheduled resource allocation. 
     
     
       19. The method of  claim 16 , wherein the request message indicates a plurality of casting types, each casting type having a respective priority; and
 the allocated resource pool being for one of the plurality of casting types. 
 
     
     
       20. The method of  claim 19 , wherein the plurality of casting types includes at least two of unicast, multicast and broadcast. 
     
     
       21. The method of  claim 16 , wherein the allocated resource pool is dedicated for use by the wireless device.